Farmers depend on our planet for their livelihoods, so they truly care about the health of the land and environment. Technologies like biotech canola means they can now use fewer herbicides to protect their crops from weeds, which reduces the impact that agriculture has on our environment.
Source: Graham Brookes & Peter Barfoot (2015). Environmental impacts of genetically modified (GM) crop use 1996–2013: Impacts on pesticide use and carbon emissions. GM Crops & Food, 6:2, 103-133.